I have a Philips 60PP9100D - 60" rear projection TV need help with the colour?

I have a Philips 60PP9100D - 60" rear projection TV(http://reviews.cnet.com/projection-tvs/philips-60pp9100d-60-rear/1707-6484_7-31583602.html#userOpinions) i had it since 2006 and it work fine but my grandma messed with the Color on it and i cant seem to get it back right. i even try to set it back to factory but it still look ugly with to much green and red. What can i do to fix this problem i have try everything i know so i give up lol
 
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